样本中近地小行星的色指数 (IMAGE) Beijing Zhongke Journal Publising Co. Ltd. Caption 样本中近地小行星的色指数B-R和V-I。 Credit 北京中科期刊出版有限公司 Usage Restrictions Credit must be given to the creator. License CC BY Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.